Philip Wylie (1902-71) wrote several classic works of speculative fiction, including "Gladiator" and "The Disappearance," as well as a popular work of nonfiction, "A Generation of Vipers," Edwin Balmer (1883-1959), an engineer, was also a writer of detective stories and speculative fiction. Introducer John Varley is an acclaimed science fiction writer and a winner of the Hugo and Nebula Awards. His books include "Wizard," "Demon," and "Steel Beach."